Iwadono Mine
Gosho, Yoshimi city, Hiki county, Saitama pref., Japan
Occurrence
Besshi massive sulfide deposit
Besshi Massive Sulfide Deposit in the accretionary complex subjected to Greenschist facies metamorphism in a low grade part of Yoshimi metamorphic rocks.
Reported Minerals
- Pyrite
- Chalcopyrite
- Tetrahedraite
- Covellite
Mineral Assemblages
- Quartz - Pyrite
Details of the mine
Mined before 1940. 10 tons of Cu ore with 3% quality was shipped to Niigata.
Localities
- Hitachi Mine (Cu, EA facies)
- Besshi Mine (Cu, EA facies)
- Iwadono Mine (Pyrite, EA facies)
- Hidaka Mine (Cu, GS facies)
- Shizuka Mine (Ni, GS facies)
- Kanasaki (Pyrite, GS facies)
Related Occurrences
- Greenschist facies
- Blueschist facies
- Epidote-Amphibolite facies
- Amphibolite facies
- Eclogite facies
- Low-P granulite facies
- High-P granulite facies